When a person (usually a man) has a "look" as if they are almost a retard but are actually quite normal, maybe even above average in intellegence. Yet, they have a face that nearly resembles a mongoloid. They are not dumb, they just have dumb face.

The outward appearance or "look" a person has that makes them seem retarded. An outward image of being inarticulate, impaired, a dullard, a moron, a simpleton, an idiot, a dunce, an imbecile; yet in reality, this person is of normal, even sometimes above average intellegence.

All of Archie's boys have dumbface, yet each are successful, and usually make intellegent decisions.

an expressionless and judgmental look given to someone who has just made an unfunny, ignorant, or asinine joke, statement, or action. designed to express disapproval in a way that makes it clear that the receivers previous offering was not even deserving of a reaction of any kind.

joe: i think we should get tacos
will: your FACE is a taco! lol
joe: :| *note: that's what a dumb face looks like*
will: get it? because... like.. you eat tacos... with... your face?
joe: ... anyway, i think we should get tacos